大约有 13,913 项符合查询结果（耗时：0.0301秒） [XML]
Print array to a file
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Either var_export or set print_r to return the output instead of printing it.
Example from PHP manual
$b = array (
'm' => 'monkey',
'foo' => 'bar',
'x' => array ('x', 'y', 'z'));
$results = print_r($b, true); //...
Why should text files end with a newline?
I assume everyone here is familiar with the adage that all text files should end with a newline. I've known of this "rule" for years but I've always wondered — why?
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Get the latest record from mongodb collection
...s are inserted in.
Edit: For all the downvoters, above is a Mongoose syntax,
mongo CLI syntax is: db.collectionName.find({}).sort({$natural:-1}).limit(1)
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How do I best silence a warning about unused variables?
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You can put it in "(void)var;" expression (does nothing) so that a compiler sees it is used. This is portable between compilers.
E.g.
void foo(int param1, int param2)
{
(void)param2;
bar(param1);
}
Or,
#define UNUSED(expr) do { (void)(expr); } ...
How can I list all commits that changed a specific file?
...all commits regarding that filename (not actual file). If you create files X and Y, changed both, then deleted Y and renamed X to Y and then also changed it, and you run git log Y, you will get messages for both old Y and new one. And the opposite, with --follow you will get commits regarding that f...
Replace a value if null or undefined in JavaScript
...ilter2 = options.filters[1] || ''; // is ''
That can be accessed by index.
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Copy file remotely with PowerShell
...'s much easier this way.
Copy-Item -Path \\serverb\c$\programs\temp\test.txt -Destination \\servera\c$\programs\temp\test.txt;
By using UNC paths instead of local filesystem paths, you help to
ensure that your script is executable from any client system with
access to those UNC paths. If ...
Is there a job scheduler library for node.js? [closed]
... would let me schedule some function to be ran at certain time (15:30 for example, not x hours from now etc)? If there isn't this kind of library how this should be implemented? Should I just set callback to be called every second and check the time and start jobs scheduled for the time or what?
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Grid of responsive squares
...re would have vertically and horizontally aligned content. The specific example is displayed below...
4 Answers
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